Full-glass vacuum pipe solar water heater for heating

Abstract

The invention provides a full-glass vacuum pipe solar water heater for heating. A water storage case is obliquely fixed, so an inclined angle is formed between the water storage tank and the horizontal line; the inclined angle is 10 to 25 degrees more than local latitude; a row of full-glass heat pipe vacuum heat collection pipes is respectively transversely arranged in the left and right sides of the water storage tank; a condensate end of each full-glass heat pipe vacuum heat collection pipe skews a corner toward the bottom of the water storage case; and the corner is more than zero degree and less than 20 degrees. The water heater is installed at high inclined angle, so higher heat can be achieved in winter and solar energy heating can be facilitated; less heat is achieved in summer, so excessive heat of the water heater can be avoided, thereby being quite suitable for solar energy heating systems; no water exists in the pipe during operation of the water heater, so pipe freeze in winter can be prevented; and when one heat collection pipe is broken, leakage of water in the water storage case can be avoided, so the heat collector can be still used normally.

Description

technical field [0001] The invention relates to an all-glass vacuum tube solar water heater, which belongs to the technical field of solar thermal utilization, and is especially suitable for solar heating systems. Background technique [0002] With the development of solar thermal technology, the solar heating system using solar energy as the heat source has made great progress and has gradually been recognized by the market. In many types of solar heating systems, the collectors used are divided into flat-plate solar collectors and vacuum tube solar collectors. [0003] Due to the limitation of its structure, there is gas convection between the heat absorber and the cover glass cover plate, which makes the heat loss of the flat-plate solar collector larger, and the heat loss is even greater in winter. This defect makes it Not good for a solar hot water system running for winter heating. [0004] Traditional vacuum tube solar collectors are generally used for heating syste...

AI Technical Summary

Problems solved by technology

However, the existing all-glass heat pipe vacuum heat collection tubes are all vertically arranged. Due to their vertical arrangement (the lower end is the heat collecting end and the upper end is the condensing end), the header must be connected to only one row of heat collecting tubes, which makes the lighting area At the same time, the existing all-glass heat pipe vacuum heat collector consists of too much heat collection in summer, which can easily lead to overheating of the heat collector, and insufficient heat collection in winter, resulting in the collector being unable to Meeting the requirements for use is also a common technical problem

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